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Finding the Fourth Proportional to 6,476,681.22, 8,934,073.25 and 4,184,841.90

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Solution

The fourth proportional to 6,476,681.22, 8,934,073.25 and 4,184,841.90 is: 5,772,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,476,681.22 : 8,934,073.25 = 4,184,841.90 : x
  2. Step 2: Convert to fraction form
    6,476,681.22/8,934,073.25 = 4,184,841.90/x
  3. Step 3: Cross multiply
    6,476,681.22x = 8,934,073.25 × 4,184,841.90
  4. Step 4: Simplify right side
    6,476,681.22x = 37,387,684,053,344.96
  5. Step 5: Solve for x
    x = 37,387,684,053,344.96/6,476,681.22
  6. Step 6: Final answer
    x = 5,772,660.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.